Cisco Systems C3850NM210G Manual De Usuario

See these sections for information on network modules:

See these sections for information on SFPs and SFP+:

Category 5e and Category 6 cables can store high levels of static electricity. Always ground the cables 
to a suitable and safe earth ground before connecting them to the switch or other devices.

The 10/100/1000 Ethernet ports use RJ-45 connectors with Ethernet pinouts. The maximum cable length 
is 328 feet (100 meters). The 100BASE-TX and 1000BASE-T traffic requires Category 5, Category 5e, 
or Category 6 UTP cable. The 10BASE-T traffic can use Category 3 or Category 4 cable. 

The autonegotiation feature is enabled by default on the switch. At this setting, the switch ports 
configure themselves to operate at the speed of attached device. If the attached device does not support 
autonegotiation, you can explicitly set the switch port speed and duplex parameters. To maximize 
performance, either let the ports autonegotiate both speed and duplex, or set the port speed and duplex 
parameters on both ends of the connection.

For simplified cabling, the automatic medium-dependent interface crossover (auto-MDIX) feature is 
enabled by default on the switch. With auto-MDIX enabled, the switch detects the required cable type 
for copper Ethernet connections and configures the interface accordingly. Therefore, you can use either 
a crossover or a straight-through cable for connections to a switch 10/100/1000 Ethernet port regardless 
of the type of device on the other end of the connection.

See the switch software configuration guide or the switch command reference on Cisco.com for more 
information about enabling or disabling autonegotiation and auto-MDIX.

If auto-MDIX is disabled, use the guidelines in 

 to select the correct cable for connecting the 

switch 10/100/1000 Ethernet ports to other devices. See the 

 for cable-pinout descriptions.